diff options
| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2023-03-20 14:50:44 +0300 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2024-06-17 12:47:11 +0300 |
| commit | 6d241fa0015969a8c8a185e9245b53e9fb681285 (patch) | |
| tree | 9d761b072041fc7f0ebaf7e7f3fc82e86f52179b /drivers/thunderbolt/sb_regs.h | |
| parent | e8241f66a812847853aa8c8a97b3492d152c6f23 (diff) | |
| download | linux-6d241fa0015969a8c8a185e9245b53e9fb681285.tar.xz | |
thunderbolt: Add sideband register access to debugfs
This makes it possible to read and write USB4 port and retimer sideband
registers through debugfs which is useful for debugging and manufacturing
purposes. We add "sb_regs" debugfs attribute under each USB4 port and
retimer that is used to access the sideband.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/thunderbolt/sb_regs.h')
| -rw-r--r-- | drivers/thunderbolt/sb_regs.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/thunderbolt/sb_regs.h b/drivers/thunderbolt/sb_regs.h index f37a4320f10a..b2a6add82161 100644 --- a/drivers/thunderbolt/sb_regs.h +++ b/drivers/thunderbolt/sb_regs.h @@ -12,6 +12,10 @@ #define USB4_SB_VENDOR_ID 0x00 #define USB4_SB_PRODUCT_ID 0x01 +#define USB4_SB_FW_VERSION 0x02 +#define USB4_SB_DEBUG_CONF 0x05 +#define USB4_SB_DEBUG 0x06 +#define USB4_SB_LRD_TUNING 0x07 #define USB4_SB_OPCODE 0x08 enum usb4_sb_opcode { @@ -35,6 +39,10 @@ enum usb4_sb_opcode { #define USB4_SB_METADATA 0x09 #define USB4_SB_METADATA_NVM_AUTH_WRITE_MASK GENMASK(5, 0) +#define USB4_SB_LINK_CONF 0x0c +#define USB4_SB_GEN23_TXFFE 0x0d +#define USB4_SB_GEN4_TXFFE 0x0e +#define USB4_SB_VERSION 0x0f #define USB4_SB_DATA 0x12 /* USB4_SB_OPCODE_READ_LANE_MARGINING_CAP */ |